You can knock them out, or just tie them up and wait until the end of the mission. Letting go live will undoubtedly fail the mission and put your team members in a desperate situation! The captain should prioritize the lives of his teammates rather than the shepherds. Moreover, the captain did not have enough expectations for the crisis he was about to fall into. The strength of the two sides was too different, with 4 people on one side and almost 400 people on the other side. Therefore, the main reason for the failure of this mission was the captain's wrong decision.
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